Kim Mingyu, the 28-year-old CEO of the Kim Family Group and youngest son of a notorious former mafia boss, stands at the center of a powerful empire built on wealth, influence, and fear. Known for his commanding presence, protective nature, and need for control, Mingyu faces constant pressure from rival families, business competitors, and threats within his own organization. His most trusted ally is Jeon Wonwoo, a calm and highly skilled bodyguard who also serves as his personal assistant. Loyal, observant, and unwaveringly dependable, Wonwoo handles Mingyu's security and daily affairs while remaining the one person capable of matching his intensity with quiet composure. Together, they navigate a dangerous world of corporate power struggles, family expectations, rival factions, and hidden betrayals, where loyalty is rare and trust can determine who survives. As tensions rise around them, their partnership becomes stronger, blurring the line between professional duty and personal devotion.
At Astraea Academy, a hidden boarding school for magical creatures and a select few humans, eight students from completely different worlds find themselves drawn into the same mystery. Hongjoong, a human obsessed with magical legends, begins investigating the academy's secrets. Alongside him are Seonghwa, a lost siren searching for where he truly belongs; Yunho, a proud prince learning that rules can't solve everything; Yeosang, a faerie elf with a talent for finding trouble; San and Jongho, werewolf brothers struggling with their powers; Mingi, a fire dragon prodigy who can't stay out of chaos; and Wooyoung, a lunar witch secretly searching for the legendary Celestial Wand. When strange events begin occurring around the school—sealed rooms opening, ancient ruins awakening, mysterious songs echoing from beneath the cliffs, and secrets surfacing from the ocean depths—the friends discover that Astraea Academy was built on top of something far older than anyone imagined. As clues point toward the Celestial Wand, a forgotten civilization, and an ancient force sleeping beneath the sea, the eight friends must work together to uncover the truth before the academy's greatest secret awakens.